Anti-refractive film

Abstract

Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or / and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.

Description

FIELD OF THE INVENTIONCROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of Korean Patent Application No. 10-2016-0028468 filed on Mar. 9, 2016, Korean Patent Application No. 10-2016-0029336 filed on Mar. 11, 2016, Korean Patent Application No. 10-2016-0030395 filed on Mar. 14, 2016, and Korean Patent Application No. 10-2017-0029953 filed on Mar. 9, 2017 with the Korean Intellectual Property Office, the disclosures of which are herein incorporated by reference in their entirety.[0002]The present invention relates to an anti-reflective film. More particularly, the present invention relates to an anti-reflective film capable of having low reflectance and high light transmittance, simultaneously implementing scratch-resistance and an anti-pollution property, and enhancing sharpness of a screen of a display device.BACKGROUND OF THE INVENTION[0003]In general, an anti-reflective film is mounted on a flat-panel display device such as a plasma display panel (PDP...

AI Technical Summary

Benefits of technology

The present invention provides an anti-reflective film that has low reflectance and high light transmittance, while also being highly scratch resistant and anti-pollution. Additionally, the film improves the sharpness of the screen of a display device. The technical effect of this invention is to provide a better viewing experience for users of display devices. The invention also provides a manufacturing method for this anti-reflective film.

Problems solved by technology

However, since in the AG coating method, sharpness of a screen is deteriorated due to surface unevenness, recently, the AR coating method has been variously studied.

However, in the method of forming a plurality of layers as described above, since a process of forming each of the layers is separately performed, close interlayer adhesion (interfacial adhesion) may be weak, such that scratch resistance may be deteriorated.

However, in the case of using the particles with a nanometer size, it was difficult to increase scratch resistance while decreasing reflectance of the low-refractive layer, and an anti-pollution property of a surface of the low-refractive layer was significantly deteriorated due to the particles with the nanometer size.

Therefore, various studies for decreasing an absolute reflection amount of light incident from the outside and improving an anti-pollution property together with scratch resistance of a surface have been conducted, but physical properties of the anti-reflective film are not sufficiently improved in spite of these studies.